Revolver.



T. M. DU BOSE.

REVOLVER.

APPLIGATION FILED MABjso, 1909.

Patented Dec. 21, 1909.

iran sa @FICE THOMAS 1VI. DU BOSE, OF HATTIESBURG, MISSISSIPPI.

REVOLVER.

Patented Dec. 21, 1909. Serial No. 486,662.

To all whom t may concern:

Be it known that I, THOMAS M. DU Bosn, a citizen of the United States,residing at Hattiesburg, in the county of Forest and State ofMississippi, have invented a new and useful Revolver, of which thefollowing is a specification.

This invention has for its object to increase the capacity of therevolver as regards the number of shots which may be fired withoutreloading.

The invention also has for its object to provide a tiring mechanismwhich is adjustable so that two shots may be fired simultaneously.

`W ith the foregoing objects in view, the invention consists in a novelconstruction and arrangement of parts to be hereinafter described andclaimed, reference being had to the drawing hereto annexed forming apart of this specification, in which drawings- Figure 1 is an elevationof a revolver constructed in accordance with the present invention. Fig.2 is a longitudinal sectional view. Fig. 3 is an end view of thecylinder. Fig. 4 is a sectional detail of the adjustable firingmechanism hereinafter referred to.

Referring more particularly to the drawings, 5 denotes the frame of therevolver; 6, the handle; 7, the cylinder; and 8 and 9, respectively, thebarrels. Two barrels are provided, and the cylinder has two sets ofcartridge chambers indicated at 10 and 11, said chambers being arrangedin concentric circles, and adapted to register respectively with thebarrels.

The shell extractor is a disk 12 having a circular series of openings 13corresponding to and registering with the chambers 11, and in theperiphery of the disk are semi-circular notches 14 corresponding to andregistering with the chambers 10. The disk 12 is operated by a tubularrod 15 passing centrally through the cylinder. Through the rod passes aspindle 16 which is supported at its inner end in a bearing opening inthe breech wall 17, whereby the cylinder is rotatably mounted in properposition behind the barrel.

Any suitable mechanism may be provided for rotating the cylinder and forlocking the same in firing position, such mechanism being immaterial to,and forming no part of the present invention.

The revolver is provided with a single hammer 1S which is pivoted withinthe chamber of the frame, and which operates, in conjunction with themechanism to be presently described, to tire one of the barrels, or bothbarrels, simultaneously. The hammer may be actuated by the usualmechanism employed for this purpose, and as such actuating means formsno part of this invention, a description thereof is thought unnecessary.It may be stated, however, that any one of the various actuating meansemployed in different makes of revolvers, may be used. The only changein the hammer structure is the shape of its striking face, said facehaving a striker 19 located so as to directly engage the shellscontained in the chambers 10, and a second striker 2O located to operatea firing pin 2l engageable with the shells contained in the chambers 11.

The firing pin 21 is carried by a block 22 which is slidably mountedbetween the side plates of the frame, immediately behind the breech wall17. From one side of the block projects a pin 23 which extends through aslot 24 in one of the walls of the frame, to the outside thereof, bywhich pin the block may be manipulated to bring the firing pin into andout of alinement with the chambers 11. One end of the block carries flatsprings 25 which engage the adjacent wall of the frame, and serve tobind the block between the walls so that it will work tight, andmaintain its position. The outer end of the pin is provided with abutton 26 to facilitate its manipulation. Upon sliding the block 22upwardly so that the firing pin 21 is in alinement with the chambers 11,said chambers, and also the chambers 10, will be fired ott upon thedescent of the hammer, and when the block is slid downwardly out of theway of the striker 20, the chamber 10 only will be fired off. Thecapacity of the revolver as regards the number of shots which may befired without reloading is therefore increased, and it is also possibleto tire two shots simultaneously. The mechanism herein described wherebythis result is attained, is simple, and a revolver provided with thesame, may be manufactured with no great increase in the cost thereof.The two sets of cartridge chambers may be of different calibers.

What is claimed is:

1. In a revolver, a pair of barrels, a cylinder having two sets ofcartridge chambers registering respectively with the barrels, a slidingblock mounted in the stock, and

carrying a firing pin, means for moving said block to aline the firingpin With one set of cartridge Chambers, a hammer for the other set ofcartridge chambers, and means on the hammer for actuating the firing pinWhen in alinement With its set of cartridge chambers.

2. In a revolver, a stock having a slot in one of its side Walls, a pairof barrels, a cylinder having two sets of cartridge chambers registeringrespectively with the barrels, a sliding block mounted in the stock, andcarrying a ring pin7 a pin carried by the block and projecting throughthe aforesaid

